check it out, mary ellen captured and killed a 13 foot alligator in south carolina. hooking the monster with a fishing pole and fought the beast two hours, and took it down. >> eric: back now, "sunday house call" and your host, dr. isadore rosenfeld, there is more and more research done on alzheimer's disease. and, now there is new information about how it could have a connection to memory loss, that most people associate with normal aging. what does the study show, doctor. >> you're right, those of us who are getting older find that our memory is not what it used to be, we don't know where we put the car keys or put our glasses, we have trouble remembering somebody's name, and, this is thought to be due to normal aging. and, there is nothing -- has nothing to do with alzheimer's and the vast majority of people who have these memory lapses, so-called senior moments, do not in fact go on to develop alzheimer's. but, recent research shows that if you do have these memory symptoms, you in fact have -- are beginning to have the changes that occur in the brain in alzheime